The flower pictured in its bud stage is an American Lotus (Nelumbo lutea), a large aquatic perennial also commonly known as the yellow lotus, water-chinquapin, or volée. It is the only lotus species native to North America, thriving naturally in quiet ponds, lakes, and slow-moving river systems. While typical water lilies float directly on the surface of the water, the American Lotus is an emergent plant characterized by its massive, umbrella-like leaves and single flowers that are held high above the water on long, stiff, vertical stalks. When fully mature, this pale-green bud will open into a fragrant, cream-to-pale-yellow blossom that can reach up to ten inches in diameter. Thousands can be found at the Great Meadows National Wildlife Refuge, where I took this photo.